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Mastering Development

Error in the output window of Xilinx as shown in below diagram for 32 bit logic unit using gate level

Below mentioned is the code for the 32-bit logic unit with the below showed logic function in the diagram. I am not sure where I am going wrong. I tried making changes in the logic function of the selection bit ‘s’ but it doesn’t seem to works somehow. module ALU_unit(output out, input x, input y, […]

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Mastering Development

Reverse Engineering Z3 SMT solver solutions

I am using Z3 named SMT solver to generate a new set of random numbers from a given vector under some constraints. I am doing this in order to hide my input stream. The corresponding code can be found below: from z3 import * import sys import io import math X0 = Real(‘X0’) X1 = […]

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Mastering Development

Creating a DataFrame by appying a function that returns a tuple

I have a dataset that has the following features : [coord_x, coord_y, coord_z, xdot, ydot, zdot] epoch sat_id x y z Vx Vy Vz 0 2014-01-01 00:00:00.000 0 -8855.823863 13117.780146 -20728.353233 -0.908303 -3.808436 -2.022083 1 2014-01-01 00:46:43.000 0 -10567.672384 1619.746066 -24451.813271 -0.302590 -4.272617 -0.612796 2 2014-01-01 01:33:26.001 0 -10578.684043 -10180.467460 -24238.280949 0.277435 -4.047522 0.723155 3 […]

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Mastering Development

GGPlot annotation gets pushed off page scale when combining multiple plots within grid.draw

I have 5 plots for 5 different groups. I want to indicate a statistically significant difference a specific time points. I used annotate() to place asterisks in individual plots above the time points. However, when I combine all the plots together to make one figure, the asterisks get pushed off the plots. It looks like […]

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Development

How to cycle through permutations of a list of 88 elements?

I’m trying to assign a single variable each permutation of a list of 88 elements one after another. This means the variable would be re-assigned a new permutation 88! times. I have tried making 88 nested for-loops but apparently there is a limit to how many for-loops you can nest. I am using Python. elements […]

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Development

How to join output from sklearn preprocessing interaction variables back to original dataframe?

I am trying to create interaction variables for a logistic regression model. I have 70+ features of which I only want to perform preprocessing on 6 of those features. Does anyone know how to take the numpy array from fit_transform and join these interactions back to may original dataframe? Also, is there an elegant way […]

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Development

text annotations on different ggplot facets with labels from a dataframe from a list-column?

I have a nested tibble/dataframe that looks like this toy dataset (EDITED SINCE ORIGINAL POSTING): library(tibble) library(ggplot2) library(dplyr) library(tidyr) library(purrr) id <- c(1,2) set.seed(123) sess <- c(0,0,1,1,1,2,3,3,3,3,4,5,5,5,5,6) meas <- c(rnorm(16, mean=3, sd=2)) meas2 <- c(rnorm(16, mean=2, sd=1)) test.tb <- tibble(id=id, sess=list(sess), spd=c(list(meas), list(meas2))) test2.tb <- test.tb %>% mutate( max = unlist(map(spd, ~ round(max(., na.rm=TRUE),2))), mean […]

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AJAX Development

ChartJS not displaying time data using Moment.js

I am trying to map out a series of data points on a given day by the hour. Not every hour is included in the data set, however I still want to show the time from 0:00 – 23:00 and plot the data points that is available. My error is This method is not implemented: […]

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Development Python

Linear programming using python example

I have a question, here is the deal. The company manufactures two-unit home air conditioners, which have a capacity of 350 units per month. The production cost of the air conditioner in Drive 1 is 30000 USD, and in Drive 2 it is 27000 USD. The price of the stored devices is 2800 USD for […]

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Algorithms Development

Round robin scheduling algorithm has infinite loop

I am writing algorithm for round robin CPU scheduling and I have used vector as ready queue. But when I run the code the initial value of i = *(vector.begin()) should be zero and next time i has another value according to code , as I did vector.push_back(0) but when I used a debugging statement […]